US Senator Blanche Lincoln easily won re-election to a second term while Arkansans cast ballots in a presidential race that was too close to call in today`s general election. The AP based Lincoln`s win on a statistical analysis of the vote from voter interviews conducted for the by Edison Media Research and Mitofsky International. Lincoln plugged along with her six million dollar re-election campaign against Republican Jim Holt, a state senator from Springdale who ran with a shoestring budget of less than 100 thousand dollars at last count. --- dash --- Three incumbent congressmen also were up for re-election in the general election and three proposed constitutional amendments were on the ballot, including one to define marriage as only between a man and a woman. After blazing a trail to Arkansas in his first race for the nation`s highest office, President Bush never visited the state after May in a re-election bid that concentrated on key battleground states elsewhere. Surrogates also carried much of Democrat John Kerry`s campaign here, although former President Clinton flew in Sunday and threw thousands to a stirring get out the vote rally for Kerry and other Democrats.